Ash Carter Guest Hosts MSNBC’s Squawk Box

The last time that America almost risked a pre-emptive strike on North Korea the gamble offered a spectacular pay-off. Ashton Carter, a leading architect of that plan, recalls that his scheme for bombing the Yongbyon nuclear facility in 1994 assumed that in one or two days the entirety of the regime’s nuclear programme could be levelled and entombed in rubble. Mr Carter, who went on to become defence secretary in the Obama administration, now thinks that an American first strike would only put “a significant dent” in North Korea’s arsenal of nuclear devices and bombmaking sites. “The difference today is that the North Koreans are very good at hiding, burying and moving around their nuclear infrastructure,” says Mr Carter, now at Harvard University.

"Iran's continued pursuit of an illicit nuclear program and North Korea's rash intimidation after sinking a South Korean navy ship are but the most recent reminders of the real need for effective U.S. missile defenses," write Under Secretary of Defense for Policy Michele Flournoy and Under Secretary of Defense for Acquisition, Technology and Logistics Ashton Carter.

Failure to develop a comprehensive contingency plan, such as the one proposed here, and inform the American public, where appropriate, about its particulars will only serve to amplify the devastating impact of any nuclear attack on a U.S. city

Ashton B. Carter contributes a chapter to McGraw-Hill's new volume on Weapons of Mass Destruction and Terrorism.

Former Clinton administration officials Ashton Carter and William Perry argue that the most effective way to curb the threat from Pyongyang is to destroy its missiles at their test sites

Should the United States allow a country openly hostile to it and armed with nuclear weapons to perfect an intercontinental ballistic missile capable of delivering nuclear weapons to U.S. soil? We believe not. If North Korea persists in its launch preparations, the United States should immediately make clear its intention to strike and destroy the North Korean Taepodong missile before it can be launched.

Remarks by Ashton B. Carter at the 36th IFPA-Fletcher Conference on National Security Strategy and Policy, Washington, DC.

Remarks by Ashton B. Carter at the Conference on "Non-Proliferation of Weapons of Mass Destruction: Current Challenges and New Approaches," at Tufts University, Fletcher School of Law & Diplomacy.

Interim Report from the Policy Advisory Group (PAG), a panel of experts convened to provide advice to the Senate Foreign Relations Committee on what Congress and the administration should do to strengthen the NPT system.